Bowing walls are easy to identify, as you’ll notice your foundation walls bending inward as if about to burst. However, keep in mind that not all bowing looks the same. Sometimes, bowing can simply start as a small horizontal crack in your foundation wall – just big enough to fit a credit card into. As a rule of thumb, keeping an eye out for any abnormalities in your foundation walls is the best way to stay proactive against bowing walls. Remember, call FSS as soon as you notice any signs of bowing walls.